GB1278767A - Skid control system - Google Patents

Skid control system

Info

Publication number
GB1278767A
GB1278767A GB5273/70A GB527370A GB1278767A GB 1278767 A GB1278767 A GB 1278767A GB 5273/70 A GB5273/70 A GB 5273/70A GB 527370 A GB527370 A GB 527370A GB 1278767 A GB1278767 A GB 1278767A
Authority
GB
United Kingdom
Prior art keywords
signal
circuit
fed
output
providing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5273/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kelsey Hayes Co
Original Assignee
Kelsey Hayes Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kelsey Hayes Co filed Critical Kelsey Hayes Co
Publication of GB1278767A publication Critical patent/GB1278767A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1763—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface
    • B60T8/17633—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface based on analogue circuits or digital circuits comprised of discrete electronic elements

Abstract

1278767 Antiskid braking systems KELSEYHAYES CO 4 Feb 1970 [27 Feb 1969] 5273/70 Heading F2F A vehicle skid control system] includes a wheel-speed sensor 10 providing a signal Vw having a magnitude indicative of the wheel velocity which signal is transmitted to a sample and hold circuit 12, a differentiating circuit 16 and a difference circuit 20, the circuit 12, in response to a signal from the brake light switch 24, retaining the magnitude of signal Vw just prior to brake application and providing an output signal Vwl and the circuit 16 supplying a signal, representative of wheel deceleration, to a sample and hold circuit 52, the output of which is fed to a vehicle velocity analogue circuit 28 providing an analogue signal V1 indicative of vehicle deceleration during braking. Signal V1 is fed to a difference circuit 30 together with signal Vwl and the output signal Vv is fed to circuit 20 together with a reference signal Vsr representative of the value of slip at which the brake pressure should be released. The output X of circuit 20 is fed through an amplifier 46 to a brake pressure modulator 38 and also provides a signal to trigger the circuit 52.
GB5273/70A 1969-02-27 1970-02-04 Skid control system Expired GB1278767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80299169A 1969-02-27 1969-02-27

Publications (1)

Publication Number Publication Date
GB1278767A true GB1278767A (en) 1972-06-21

Family

ID=25185266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5273/70A Expired GB1278767A (en) 1969-02-27 1970-02-04 Skid control system

Country Status (8)

Country Link
US (1) US3612622A (en)
JP (1) JPS5130230B1 (en)
AU (1) AU1089370A (en)
CA (1) CA933261A (en)
DE (1) DE2009109B2 (en)
FR (1) FR2032472B1 (en)
GB (1) GB1278767A (en)
SE (1) SE360826B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125296A (en) * 1970-01-26 1978-11-14 Toyota Jidosha Kogyo Kabushiki Kaisha Skid control system for vehicles
US3980349A (en) * 1970-08-31 1976-09-14 Crane Co. Anti-skid brake control system
US3833268A (en) * 1972-03-10 1974-09-03 Wagner Electric Corp Wheel slip control system for automotive vehicles and the like
US3822921A (en) * 1972-07-17 1974-07-09 Texas Instruments Inc Slip and ramp signal generator and comparator for a vehicle skid control braking system
JPS5322231B2 (en) * 1972-11-20 1978-07-07
US3838889A (en) * 1973-01-10 1974-10-01 Kelsey Hayes Co Skid control system
JPS566898B2 (en) * 1973-07-11 1981-02-14
US4037881A (en) * 1975-02-03 1977-07-26 Wagner Electric Corporation Wheel slip control system for automotive vehicles and the like
JPS5653943A (en) * 1979-10-09 1981-05-13 Nissan Motor Co Ltd Antiskid controller
GB2062786B (en) * 1979-10-09 1984-05-23 Nissan Motor Anti-skid braking systems
SE450563B (en) * 1983-11-01 1987-07-06 Folke Ivar Blomberg ELECTRONIC SENSOR FOR VEHICLES WITH A CLEAR-FREE BRAKE SYSTEM
JPS60261766A (en) * 1984-06-07 1985-12-25 Nissan Motor Co Ltd Antiskid controller
DE3841957A1 (en) * 1988-12-14 1990-06-28 Bosch Gmbh Robert ANTI-BLOCKING CONTROL SYSTEM

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980369A (en) * 1959-04-07 1961-04-18 Goodyear Tire & Rubber Anti-skid system electric circuit
FR84854E (en) * 1961-06-05 1965-08-16
US3245213A (en) * 1962-07-25 1966-04-12 Crane Co Automatic brake control system
US3245727A (en) * 1962-08-15 1966-04-12 Crane Co Anti-skid brake control system
GB1085233A (en) * 1963-08-13 1967-09-27 Nat Res Dev Braking of vehicles
DE1931806U (en) * 1965-06-03 1966-01-27 Bremshey & Co SEAT, IN PARTICULAR VEHICLE SEAT.
FR1544451A (en) * 1966-11-16 1968-10-31 Teldix Luftfahrt Ausruestung Anti-lock regulator system with lowering of the braking force according to the angular deceleration
US3467443A (en) * 1967-08-17 1969-09-16 Nippon Denso Co Antiskid apparatus for automotive vehicles
JPS492835A (en) * 1973-03-09 1974-01-11

Also Published As

Publication number Publication date
DE2009109B2 (en) 1978-04-20
DE2009109A1 (en) 1970-09-10
FR2032472B1 (en) 1974-07-12
SE360826B (en) 1973-10-08
US3612622A (en) 1971-10-12
CA933261A (en) 1973-09-04
AU1089370A (en) 1971-08-05
FR2032472A1 (en) 1970-11-27
JPS5130230B1 (en) 1976-08-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years